baber/WOPTO huggingface dataset:
Patent GB-526270-A (GB)
Title: Improvements in two-part couplings for electrical wiring systems
IPC: H01R11/22
Filed: 1939-03-11
Abstract: 526,270. Two-part couplings ; contacts. GENERAL ELECTRIC CO., Ltd., and CORNELL, W. March 11, 1939, No. 7892. [Class 38 (i)] [Also in Group XXXVII] A multiple contact coupling having on one member 18 projecting contacts 42 that enter recessed contacts 40 on the other member 11 has clamping screws 36 that close the contacts 40 on to the inserted contacts 42 and also serve to retain the contacts 40 in recesses in the member 11. The contacts 42 are located in recesses in the member 18 and secured by a strip 22 passed through the end walls and partitions between the recesses. Cables attached to the contacts lie in convergent channel members 26, 27 which are apertured to allow of lacing the cables in place. Associated with the holes 37 in which lie the heads of the screws 36 are channels, in which a lead for a temporary connection can be laid, and coloured , indicators corresponding to the colour of the leads to be connected.
Patent GB-254650-A (GB)
Title: Improvements in corers for grape fruit and the like
IPC: A47J25/00
Filed: 1926-03-22
Abstract: 254,650. Webster, H., (Boyle Products Co.). March 22, 1926. Removing cores from grape fruit &c.-A device for coring grape fruit and the like comprises a pair of carved cutters a, which are hinged together at c so that, when opened, they form a substantially cylindrical cutter which is thrust into the fruit around the core which is then cut transversely by moving the cutters c towards one another bv the handles d, the core then being withdrawn with the tool. Specification 251,109 is referred to.
Patent GB-547512-A (GB)
Title: Improvements relating to electric switches of the quick make-and-break and pull-push type
IPC: H01H15/18
Filed: 1941-06-24
Abstract: 547,512. Push-pull switches. ROTAX, Ltd., and BOURNE, W. G. June 24, 1941, No. 7937. [Class 38 (v)] A snap-action, push-pull rotary switch comprises a rotary member f with contacts h and abutments m adapted to engage a pair of retractable stops n joined by springs n<SP>1</SP>. Stationary contacts k press on the drum f. A shaft e which may bear a press button is moved, say, downward, compressing first a spring 6 and moving down a pair of strips u each bearing abutments y which move the active stop n, the lower one, clear of adjacent abutment m on the drum f. An operating member, comprising a pair of strips o is thereby enabled, by the engagement of crank pins r on the drum, with slots in the strips o to rotate the drum f suddenly, the spring 6 expanding. The other abutment m' moves past the other stop n to engage it and to be ready for a reversal of action on pulling the shaft e upwards.
Patent GB-634504-A (GB)
Title: Improvements in or relating to magnetic cores for use at high frequencies
IPC: H01F17/04
Filed: 1947-03-24
Abstract: Ferromagnetic cubic nickel-zinc ferrite for use in the cores of inductance and transformer coils operating at frequencies exceeding 1 mc/sec. is made by forming a finely-divided mixture of compounds of iron, nickel and zinc wherein the proportion of iron compound or compounds corresponds to a molecular percentage of from 40-50 per cent of ferric oxide and the proportion of iron, nickel and zinc compounds are such as to yield a ferrite with a Curie point of at least 250 DEG  C., the said mixture being sintered in an atmosphere containing oxygen at a temperature not exceeding 1300 DEG  C.  The oxide mixture may be produced by deposition with sodium carbonate from a solution of nickel sulphate, zinc sulphate and iron nitrate, and then dried and heated in air for one hour at 900 DEG  C.  It may be moulded into a ring at 3 tons/cm.2, heated at 1000 DEG  C. or 1300 DEG  C. for 1 hour in oxygen and cooled at about 5 DEG  C. a minute in oxygen.  Alternatively, a mixture of the oxides may be ground in a ball-mill for four hours, heated for one hour to 800 DEG  C. in oxygen, re-ground and compressed to a ring which is heated for 1 hour at 1050 DEG  C. in oxygen and slowly cooled.  To provide a correct dosing of oxygen, a stream of superheated water-vapour may be passed over the ferrite.  This water-vapour is partly dissociated into H and O and the oxygen partial pressure decreases with decrease in temperature whereby the oxygen content is controlled.  Alternatively the water-vapour may be replaced by a mixture of an inert gas with oxygen obtained from water by electrolysis by a current varying with the temperature of the ferrite.  Specifications 626,946 and 645,056 are referred to.  The product may be resintered several times; suitable proportions of oxides, and properties of the finished ferrites are stated.
Patent GB-140447-A (GB)
Title: Protecting disc for the goggles of gas masks
IPC: A62B18/02
Filed: 1920-03-18
Abstract: 140,447. Mayer, M. June 9, 1916. [Convention date]. Addition to 138,631. Respiratory appliances.-Gelatine disks to be employed for preventing the deposit of moisture on the goggles of gas masks, as described in the parent Specification, are applied to a film of celluloid or cellon which, in use, is located between the gelatine and the glass. The gelatine may be slightly hardened. In modifications, the celluloid &c. may be coated with gelatine on both sides, or the gelatine may be replaced by viscose used alone or in conjunction with celluloid &c.
Patent GB-606172-A (GB)
Title: Improvements relating to metal window or like frames
IPC: E06B1/18
Filed: 1947-02-05
Abstract: 606,172. Window frames. JOHNSON, A., GARDNER, W. E., SENIOR, J. H., and RUSTPROOF METAL WINDOW CO., Ltd. Feb. 5, 1947, No. 8097/46. [Class 20(iii)] A combined metal sub - frame and window or like frame of box form in cross-section and open around its outer edge is made of two identical halves, each with an inwardly extending flange on its inner edge, joined together only at these flanges. As shown, each half frame has a web portion 10, an outwardly extending flange 11, a raised channel portion 12, to form the fixed window frame as in Specification 589,651, and an outwardly extending flange 13, and may be inwardly nicked as at 11a, and provided with fittings such as hinges &c. for the window. The flanges 13 of two halves are joined together, e.g. by welding, and a double window may be hung by fitting a distance piece therebetween. The flanges 11 serve to set the frame in the brickwork &c. The lower horizontal portion of the frame may be foreshortened as at 30, and a metal sill 31 and window board 32 secured thereto. The frame may be applied to sliding windows, when the box sections house the balance weights, and removable strips form the runway, and removable plates allow access. to the weights.
Patent GB-1135164-A (GB)
Title: Improvements in or relating to drive mechanisms for the printing mechanisms of rotary printing presses
IPC: B41F13/012
Filed: 1967-02-21
Abstract: 1,135,164. Rotary presses; drive arrangements. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CIE. A.G. 21 Feb., 1967 [16 April, 1966], No. 8170/67. Heading B6C. In a rotary press having four printing couples driven from a common toothed drive-wheel 1 and in which the cylinders of each couple are relatively adjustable, the drive to each impression cylinder is such that its direction of rotation may be reversed through the application of a special tool to a projection 31 at one end of the cylinder, whereby a hollow toothed wheel 2, normally in direct engagement with the wheel 1, is moved axially of the cylinder from engagement with the wheel 1 into engagement with an intermediate toothed wheel 3 also engaging the wheel 1. Each impression cylinder, which is mounted in eccentric bearings, is driven by the toothed wheel 2 in both its axial positions of drive through the interengagement of internal teeth 6 of the wheel with spur wheels 17, 18 fixedly connected to the cylinder. The provision in the machine drive of the wheel 2 having internal teeth 6 meshing with the teeth of wheels 17, 18 connected to the impression cylinder and external teeth meshing with a toothed gear of a drive 1 or 3 for the cylinder, ensures that no additional back lash occurs when the distance between the impression and former cylinder is adjusted. In a further aspect of the invention, the wheels 17, 18 and the internal teeth 6 of the wheel 2 are constructed with different numbers of teeth to ensure efficient meshing.
Patent GB-200875-A (GB)
Title: Improvements relating to motor road vehicle brakes
IPC: B60T11/04
Filed: 1922-03-21
Abstract: 200,875. Lanchester, G. H., and Lan chester Motor Co., Ltd. March 21, 1922. Brakes, arrangement and disposition of.-The blocks e of the steering wheel brakes of a. motor vehicle are actuated by a rotary shaft i having a brake-engaging member k which is rotatable about a pivot j in alignment or approximately in alignment with the pivot axis b of the wheel. The bracket g of the post b also provides the bearing for the actuating s'haft i. This shaft may be made in two parts, one for each front wheel, the parts being connected to an operating pedal. The invention may be applied to an external contracting brake. Owing to the disposition of the parts as described, if the wheels are turned about the post g for the purpose of steering, the brake pressure is automatically relieved somewhat if they happen to be applied at the moment.
Patent GB-351398-A (GB)
Title: Improvements in web measuring and cutting mechanism
IPC: B26D7/02
Filed: 1930-03-14
Abstract: 351,398. Web measuring and cutting mechanism. WILLIAMS, H. R., 100, East 42nd Street, New York, U.S.A. March 14, 1930, No. 8237. Convention date, March 16, 1929. [Classes 31 (i) and 42 (ii).] Rotary-blade machines.-A web severing mechanism comprises a feed-roller having an unyielding periphery, a feed-roller having a yielding periphery, a knife mounted in one feed-roller and coacting with the other to cut the web periodically, and means for automatically increasing the area of web gripped by the feed-rollers at the time of cutting. Web 5 is drawn from a roll 4 by feedrollers 7, 8, of which the roller 8 is of predetermined size and comprises a resilient outer portion 10. A rotary shaft 9 on which the roller 8 is fixed rotates intermittently, through a Geneva wheel 18 and reduction gearing, a shaft 26 carrying a cam 28. This cam raises periodically hooks 31 on levers 29 carried at the ends of a shaft 30 and each connected by a pin 32 and slot 33 to a bell-crank lever 16 which is rocked thereby. The spindle 12 of the feed-roller 7 is mounted in vertical guides 13 and projects into cam slots 15 in the bell-crank levers. As the levers are rocked, the feed-roller 7 is pressed down on to the resilient portion 10 of the measuring roller 8, compressing it until a radial knife 11, Fig. 5, normally below its surface, is exposed and cuts the web, the compressed portions on either side of the knife holding the web securely during the cutting operation.
Patent GB-782414-A (GB)
Title: Improvements in pad boxes
Inventor: HAWKINS WALLACE GERALD
IPC: A43D25/10
Filed: 1954-03-22
Abstract: 782,414. Sole presses. CLARK, Ltd.. C. & J. June 22, 1955, [March 22, 1954], No. 8284/54. Class 17(1) The pad box of a sole press has a sectional pad support, and each section is separately subjected to fluid pressure. Each section carries or constitutes a fluid cylinder or its piston. The diameters of the cylinders are predetermined to give the required proportional upthrust. The construction shown in Fig. 1 of the Provisional Specification comprises two blocks 1, 2 and a hinged flap 3 with an overlying pad 4. The pad and/or support may be carried transversely. Pistons 5, 6 on blocks 1, 2 slide in cylinders 5A, 6A, and flap 3 is pivotally connected to pistons 9, 10 slidable in cylinders 9A and 13, the latter being swivelly supported. All the cylinders are inter-connected and supplied with fluid through conduit 17. Rollers 18 prevent binding under pressure. In the construction shown in Fig. 3 the support comprises hingedly inter-connected heel, waist, and sole members 23, 20, 24 supported respectively by plungers 26, 25, 27 in bores 29, 28, 30. Member 24 comprises a base plate 37 with a guide 36 for roller 34, and a top plate 24A curved transversely and longitudinally and hinged to plate 37 by pin 39, with equalizing springs 40 therebetween. Release valves 43 are inserted in the lines connecting cylinder 28 to cylinders 29, 30 to prevent deformation of the pad assembly by gravity, e.g., when sole laying pressure is removed. Alternatively friction means, e.g. washers, may be fitted to the pivot pins of the articulated components. A hydraulic pump may be included in the cylinder circuit, and used, while the shoe is clamped, to pump oil to each cylinder to force each piston into contact with the shoes. A fluid filled bladder may be used instead of a rubber pad.
Patent GB-654102-A (GB)
Title: Improvements in magnetic means for extracting impurities from lubricants
IPC: B03C1/28
Filed: 1947-03-27
Abstract: 654,102. Magnetic separators. PHILIPS ELECTRICAL, Ltd., and DAVIS, C. W. V. March 27, 1947, No. 8338. [Class 72] An oil sump drainage plug for a gear box, crank case or other oil sump of an oil-lubricated machine comprises a threaded portion 2 carrying a permanent magnet 6 to which is attached a cage of rings 13 of magnetic material of low retentivity such as soft iron and spacers. 14 of non-magnetic material. The cage may be removed when the plug is detached from the sump. In a modification, the magnet assembly is mounted on a non-magnetic column within the hollow plug. Specifications 522,731, 527,771 and 567,064, [Group XL], are referred to.
Patent GB-1447114-A (GB)
Title: Process for the preparation of 2-aryl-2-hydroxyiminoacetic acid
IPC: C07C239/00
Filed: 1973-02-20
Abstract: 1447114 Process for the preparation of 2-aryl- 2-hydroxyiminoacetic acid GLAXO LABORATORIES Ltd 5 Feb 1974 [20 Feb 1973] 8382/73 Heading C2C The invention comprises a process for the preparation of a 2-aryl-2-hydroxyiminoacetic acid which is rich in the syn-isomer by reacting an aryl-glyoxylic acid with hydroxylamine at a pH of at least 5À5 in the presence of water and of magnesium, calcium or zinc ions. Examples describe the preparation of 2-(thien- 2-yl), 2-(thien-3-yl), 2-(fur-2-yl), 2-(fur-3-yl), phenyl and 4-hydroxyphenyl-2-hydroxyliminoacetic acids in the presence of magnesium hydroxide, zinc oxide or calcium hydroxide. Fur-3-ylglyoxylic acid is prepared by reacting 3-acetylfuran with selenium dioxide at 100- 120 C. in pyridine.
Patent GB-634640-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1946-03-19
Abstract: 634,640. Magnetrons. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 19, 1946, No. 8545. Convention date, March 22, 1945. [Class 39 (i)] A magnetron has an anode assembly comprising a plurality of adjacent and contacting approximately U-shaped elements 18 nested in a casing 10, the open ends of the elements surrounding a central space containing the cathode 13, and their legs converging radially towards the central space with their ends constituting anode segments. A conducting ring 19 is silver-soldered to alternate pairs of contacting legs and a second conducting ring 20 is silver-soldered to the pairs of legs between the said alternate pairs of legs to help # mode of oscillation. Straps respectively connecting alternate and intermediate pairs of legs could replace the rings 19 and 20. Tuning means comprise a coaxial line cavity resonator having an inner conductor 26 electrically connected at 26<1> to the conducting ring 19 and an outer conductor 25 lying along and electrically connected to a pair of legs connected to the other conducting ring 20. The outer conductor 25 is connected to the tubular member 27 provided with a threaded member 28 connected to the outer conductor 35 of a coaxial line cavity resonator having an inner conductor 40 connected to the conductor 26 and a slidable tuning ring 41. If both conducting rings 19 and 20 are mounted at one end of the magnetron as in Fig..4 they could both be directly connected to the coaxial line. The conductor 26 is shielded by the conductor 25 and this shielding is improved in the construction shown in Fig. 3 by the conductor 30 provided with a shield extension 31. The tuning arrangement 25, 26 is located with respect to the load loop 22 so that the desired mode of oscillation, usually the # mode, is obtained without distortion of the field intensities. This mode is favoured by having the tuning arrangement 25, 26 situated at some angle other than 90, 180 or 270 degrees from load line 22, 23. The leads 14 and 15 to the indirectly heated cathode 13 extend through the casing 10 which may be of stainless steel or of metal known under the Registered Trade Mark " Monel " or other non-magnetic material and are located in a plane bisecting a cavity resonator so that only a negligible amount of high-frequency power passes out through these leads. A corrugated radiator element 21 is secured to the exterior of the casing 10 for cooling purposes and a cooling medium can be directed between the casing and the open corrugations.
Patent GB-648622-A (GB)
Title: Improvements in angle modulation detector circuits
IPC: H03D3/10
Filed: 1948-03-23
Abstract: 648,622. Frequency and phase modulation. RADIO CORPORATION OF AMERICA. March 23, 1948, No. 8577. Convention date, March 29, 1947. [Class 40 (v)] An input circuit for a frequency or phase discriminator, particularly of the ratio detector type as described in Specification 606,007, comprises three circuits 12, 13, 11 resonant to a mean, for example I.F., frequency, a common impedance, for example a tapped portion 19, 20 of the inductance of the third circuit coupling the second and third circuits, the second circuit having one end at radio frequency ground potential due to the line 27 leading to condensers 25, 26 and the other end connected adjacent the electrical centre point (16) of the third circuit inductance 9, and cores 161, 9<SP>1</SP> adjusting the inductance of the latter and fixing the position of the electrical centre 16, respectively. The R.F. voltage at point 16 is applied between series-connected diodes D1, D2 having as load circuit a resistance 28 shunted by a large condenser 24 and the centre-tapped condenser pair 25, 26. Simultaneously, voltages which at the mean intermediate frequency are in quadrature with that at 16 are applied in push-pull (therefore series aiding) to the diodes by tappings 19, 20. Deviation of frequency or phase produces a demodulation output from circuit 29, 30 connected to the line 27, without amplitude modulation, although no limiter preceding the detector is used. The output across condenser 24 may be used for automatic gain control. In a modification, Fig. 3, the second circuit 13 is connected directly to the centre tap of the inductance 9 and the common impedance of the second and third circuits producing quadrature voltage components on the diodes at the mean I.F. is constituted by the capacity unbalance to ground, denoted by condenser 40, of the third circuit. Iron cores tune the three circuits and a core 16<SP>1</SP>, preferably longer than the centre tap 19, 20, adjusts the effective electrical centre of the inductance 9. De-emphasis of audio frequencies may be introduced by the condensers 25, 26. The input circuits may alternatively have balanced F.M. detectors as described in Specification 489,094.
Patent GB-820466-A (GB)
Title: Nuclear steam generator
IPC: G21C1/08
Filed: 1957-03-15
Abstract: 820,466. Nuclear reactors. BABCOCK & WILCOX CO. March 15, 1957 [April 6, 1956], No. 8661/57. Drawings to Specification. Class 39(4). In a nuclear reactor steam generator of the pressurized water type, the steam produced is passed from the reactor core through mechanical separators to a steam chamber, all enclosed within the pressure vessel. The fuel may be either a suspension or solution in heavy or light water and is contained in a tank to form the core. The steam generated in the core forces a steam-water mixture through outlets in the tank upper surface into a steam collecting chamber. The mixture is next admitted to separators, the steam being passed on to an upper chamber in the pressure vessel. The separated water is directed so as to mix with the incoming feed water which forms a neutron reflecting shield during circulation between the pressure vessel and fuel containing tank before entering the latter through holes in the lower surface.
Patent GB-1015162-A (GB)
Title: Improvements in aerial vehicles
Inventor: GARDINER TEAENCE EDWARD GOUVEN
IPC: B64C30/00
Filed: 1961-03-10
Abstract: 1,015,162. Jet-propelled aircraft. BRISTOL SIDDELEY ENGINES Ltd. March 12, 1962 [March 10, 1961], No. 8956/61. Heading B7G. [Also in Divisions F1, F2 and F3] An aerial vehicle has an externally disposed jet-propulsion unit 21, the surface 55 of the vehicle rearward of the discharge nozzle plane 54, constituting an expansion surface for the jet gases oblique to the flight direction. A unit 21 is mounted on the vehicle body above and below the plane of swept-back wings, Fig. 1 (not shown). Each unit has walls 22, 23 and is divided into three by walls 28 forming ducts 29 for ram jet and/or turbo jet units. Side walls 56 of surface 55 are continuations of the sides of wall 22; and the inclinations of walls 56 and surface 55 are such that at the required Mach number of the vehicle, a line 64, at which the pressure of the jet gases becomes equal to that of the ambient atmosphere, extends between the junction of upper and lower surfaces 55 and lip 65 of exhaust nozzles 50; downstream of line 64 the exit streamlines are parallel to the direction of flight. Slight drag results at speeds other than the required Mach number. Air from boundary layer duct 27 between wall 23 and the vehicle, passes through convergent, nozzle 57 and flows over the surface 55, and passes through openings 52 in wall 23 into hollow nozzles 50 and out through openings in wall 23 adjacent nozzle 57. The power units can be jettisoned by releasing forward attachments 25 and the units swing about the pins of pin and slot connections 26 until the pin can slide from the slot, Fig. 4, not shown. A supply line 43 for liquid fuel separates on jettisoning of the power units.
Patent GB-643812-A (GB)
Title: Rope or cable securing device or clamp
IPC: F16G11/06
Filed: 1948-03-25
Abstract: 643,812. Screw clamps. CHRISTENSEN, W. S. March 25, 1948, No. 8769. [Class 44] [Also in Group XXX] A device for securing a rope or cable which comprises a bolt 2 on which is screwed a circular base plate 1 and on which is loosely mounted a pressure disc 3 in face to face relationship with the base plate which has a plurality of rope or cable receiving grooves or recesses 10- 13 of different sizes in the surface adjacent the disc each pair of grooves or recesses being so positioned relatively to the bolt that a rope or cable 21 can be looped around the bolt and accommodated in the grooves or recesses of suitable size. and nut 5 on the bolt presses the disc against the base plate to clamp the rope or cable. A boss 15 in the centre of the base plate embraces the bolt around which the rope passes. A washer 4 is interposed between the screw means 5 and the disc 3, the washer and disc having complementary part spherical surfaces. The undersurface of the base plate 1 is provided with slots 9 so that the plate securely grips the framework 8 when the device is secured thereto.